Faculty

The Emerging Semiconductor Technology Laboratory (ESTL) focuses on developing next-generation semiconductor materials/devices and computing systems. We explore novel materials, device architectures, switching mechanisms, and system-level designs to enable new computing paradigms.

[ Curriculum Vitae ]

• 2025~Present: Assistant Professor, UNIST
• 2023~2025: Postdoctoral Researcher, Materials Physics, Sandia National Laboratories
• 2023~2025: Postdoctoral Fellow, Advanced Light Source, Lawrence Berkeley National Laboratory
• 2023~2025: Postdoctoral Researcher, Electrical and Computer Engineering, Texas A&M University
• 2023: Postdoctoral Researcher, Inter-university Semiconductor Research Center
• 2022~2023: Staff Engineer, Semiconductor R&D Center, Samsung Electronics

[ Academic Credential ]

• 2022: Ph.D., Materials Science and Engineering, Seoul National University
• 2017: B. S., Materials Science and Engineering, KAIST

[ Research Keywords and Topics ]

Semiconductor materials and processes, resistance switching materials, emerging semiconductor devices, emerging computing systems (neuromorphic computing, in-memory computing, probabilistic computing, etc.)

[ Publications (selected) ]

• “Localized Conduction Channels in Memristors”

K. S. Woo, R. S. Williams, S. Kumar, Chemical Reviews, 125, 294-325 (2025)

• “Role of Heat in Post-Silicon Electronics”

K. S. Woo, G. Kim, K. M. Kim, S. Kumar, Applied Physics Reviews, 12, 031323 (2025)

• “True random number generation using the spin crossover in LaCoO3”

K. S. Woo, A. Zhang, A. Arabelo, T. D. Brown, M. Park, A. A. Talin, E. J. Fuller, R. S. Bisht, X. Qian, R. Arroyave, S. Ramanathan, L. Thomas, R. S. Williams, S. Kumar, Nature Communications, 15, 4656 (2024)

•  “Tunable stochastic memristors for energy-efficient encryption and computing”

K. S. Woo, J. Han, S. Yi, L. Thomas, H. Park, S. Kumar, C. S. Hwang, Nature Communications, 15, 3245 (2024)

• “Memristors with Tunable Volatility for Reconfigurable Neuromorphic Computing”

K. S. Woo, H. Park, N. Ghenzi, A. A. Talin, T. Jeong, J.-H. Choi, S. Oh, Y. H. Jang, J. Han, R. S. Williams, S. Kumar, C. S. Hwang, ACS Nano, 18, 17007-170 (2024)

• “Probabilistic computing using Cu0.1Te0.9/HfO2/Pt diffusive memristors”

K. S. Woo, J. Kim, J. Han, W. Kim, Y. H. Jang, C. S. Hwang, Nature Communications, 13, 5762 (2022)

[  Awards/Honors/Memberships ]

• 2024~2025: Advanced Light Source Postdoctoral Fellowship, Lawrence Berkeley National Laboratory
• 2023: Doyeon Research Award, Inter-university Semiconductor Research Center (ISRC), Seoul National University
• 2022: SSSP Fellowship, Samsung Electronics & Seoul National University